# Wiki source code of PRE-Stress

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5 PRE-Stress is the main calculation program in the PRE-Stress Suite. It is possible to import geometry from, and export the results to IMPACT.
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7 = User Manual =
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9 Here is a link to the [[User Manual>>doc:.PRE-Stress User Manual.WebHome]] within this wiki.
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11 = Elements =
12
13 Supported cross-sections:
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15 * Rectangular
16 * Variable rectangular
17 * T-section
18 * Variable T
19 * Circular
20 * Singlesymmetric I-section
21 * F-section (Flange)
22 * Fh-section (Half flange)
23 * KB-section
24 * KBE-section
25 * D-section (deck)
26 * Hollowcore (parametric and dwg/dxf-import)
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28 Special elements:
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30 * [[Sloped I-beam (SIB)>>doc:.PRE-Stress User Manual.Sample section guide - SIB.WebHome]]
31 * [[Sloped TT-element (STT)>>doc:.PRE-Stress User Manual.Sample section guide - STT.WebHome]]
32 * [[Variable height (RBX)>>doc:.PRE-Stress User Manual.Sample section guide - RBX.WebHome]]
33 * [[Custom beam (CUSTOM)>>doc:.PRE-Stress User Manual.Sample section guide - Custom.WebHome]]
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35 = Materials =
36
37 The program calculates regular and light weight concrete elements.
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39 * Regular concrete:C12/15 - C90/105
40 [[image:1613051378218-458.png]]
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42 * Light weight concrete class 1.0-2.0): LC12/13 - LC90/98.
43 [[image:1613051335885-493.png]]
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45 * Custom concrete materials
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47 The program also handles wet concrete as a pure load.
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49 Dead load for regular concrete is 24 kN/m^^3^^. +1 kN/m^^3^^ is added if it is reinforced (any reinforcement is placed within the element perimeter) and another +1  kN/m^^3^^ is added if it is a wet concrete (unhardened). This means that a maximum density of a we unhardened concrete is calculated as 26 kN/m^^3^^. According to EN 1991-1-1, Annex A, Table A.1.
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51 The light weight concrete has a density of 10-20 kN/m^^3^^ depending on the concrete class.
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53 As for reinforcement both normal reinforcement and prestressing wires can be used in the calculations. The deadload of each reinforcementbar is not calculated, instead the dead load of the reinforcement is added as +1 kN/m^^3^^ (see extra loads for reinforced concrete above).
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55 Reinforcement is divided into two categories:
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57 * [[Regular reinforcement>>Regular reinforcement (PRE-Stress)]]
58 * [[Prestressing reinforcement>>Prestressing reinforcement (PRE-Stress)]]
59
60 = Codes and standards =
61
62 Overview of available codes and national annexes:
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65 | |(% style="text-align:center" %)Available
66 |Eurocode|(% style="text-align:center" %)✔
67 |Eurocode, British annex|(% style="text-align:center" %)✔
68 |Eurocode, Danish annex|(% style="text-align:center" %)✔
69 |Eurocode, Finnish annex|(% style="text-align:center" %)✔
70 |Eurocode, Norwegian annex|(% style="text-align:center" %)✔
71 |Eurocode, Swedish annex|(% style="text-align:center" %)✔
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73 A complete list of codes, standards and technical documents used in PRE-Stress can be found here: [[Codes and standards>>PRE-Stress.Codes and standards.WebHome]]
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75 = Results =
76
77 == Analysis ==
78
79 * Shear force
80 * Moment
81 * Torsion
82 * Deflection
83 * [[Eigenfrequency>>doc:PRE-Stress.Theory PRE-Stress.Eigenfrequency.WebHome]]
84
85 == Design ==
86
87 * Bending
88 * Shear
89 * Topping joint (if topping is present)
90 * Torsion
91 * Punching
92 * Flange reinforcement
93 * Deflection check
94 * Fire calculations
95 ** Regular beam elements
96 ** Hollow core elements
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98 == Exporting the results ==
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100 * [[Exporting to IMPACT via the Production Planner>>PRE-Stress.Exporting to IMPACT via the Production Planner.WebHome]]
101
102 = Theory =
103
104 The Theory section gathers such information as does not directly pertain to the practical use of //PRE-Stress//. More specifically, it offers insight into the theory underpinning the calculations.
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106 [[Theory index>>PRE-Stress.Theory PRE-Stress.WebHome]]
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108 = Troubleshooting guides =
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110 The guides in the troubleshooting index is based on experiences gathered from the support. To let the users learn from other users questions.
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112 [[Troubleshooting index>>https://strusoft.freshdesk.com/en/support/solutions/47000519277]]
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114 = Examples =
115
116 In the Examples section there will be a few examples using PRE-Stress to show different applications of the program.
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118 Examples index
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120 = Verification examples =
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122 In the Verification examples section there will be a few verification examples taken from other publications to compare results using PRE-Stress and hand calculations.
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124 [[Verification examples index>>Verification examples index]]
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128 PRE-Stress 6.x uses Flexera FlexNet Publisher-license system
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131
132 = Feedback =
133
134 Here are information on how to give feedback and submit bug-reports or just how to learn more about different issues in the software
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136 [[Feedback-page>>doc:StruSoft Customer Portal.WebHome]]
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143 **Contents**
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145 {{toc/}}
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